由3M公司出品的快速自含式高压蒸汽生物指示剂的培养结果显示时间为()
A. 2小时
B. 3小时
C. 12小时
D. 48小时
E. 24小时
查看答案
强生过氧化氢等离子灭菌化学指示卡灭菌前后颜色为()
A. 橘红变为黄色
B. 米色变为黑色
C. 紫色变为黄色
D. 棕色变为绿色
E. 浅色变棕色
从右栏选项中选出与左栏各项相配的答语,井将所选项的字母符号写入答题纸上。
() 21. How do you do? A. No, I'm an officer.
() 22. Where is the new library? B. How do you do?
() 23. You are a teacher, aren't you? C. No, thank you.
() 24. Do you often play basketball? D. Yes, I do.
() 25. Would you like some water? E. It is just at the right corner.